Selected books
- Leokadia Białas-Cież, Grzegorz Lewicki, Tomasz Kobos, „Podstawy teorii aproksymacji w zadaniach”, PWN, 2022
Most significant publications
- Grzegorz Lewicki, Michael Prophet, The Chalmers-Metcalf operator and minimal extensions, Journal of Functional Analysis 280 (2021), 108800
- Grzegorz Lewicki, Mieczyslaw Mastylo, Asymptotic behaviour of factorization and projection constants, Journal of Geometric Analysis 27 (2017), 335-365
- Bruce Chalmers, Grzegorz Lewicki, A proof of the Grunbaum conjecture, Studia Mathematica 200 (2) (2010), 103-129
- Bruce Chalmers, Grzegorz Lewicki, Three-dimensional subspace of $ l_{infty}^{(5)}$ with maximal projection constant, Journal of Functional Analysis 257 (2009), 553-592
- Grzegorz Lewicki, Minimal projections onto two-dimensional subspaces of $lsp {(4)}sb infty$, J. APPROX. THEORY 88 (1997), no. 1, 92--108
Recent publications
- Tomasz Kobos, Grzegorz Lewicki, 2-strong uniqueness of a best approximation and of minimal projections in complex polytope norms and their duals, Journal of Approximation Theory 314 (2026), 106245
- Grzegorz Lewicki, Maciej Ciesielski, J. Appl. Math. Comput. Mech. 24 (2025), no. 4, 5–25, vol. 24 (2025), 5-25
- Grzegorz Lewicki, Michael Prophet, Simultaneous minimal extensions with applications, Real Analysis Exchange 50,1 (2025), 159-178
- Grzegorz Lewicki, Maciej Ciesielski, Substochastic operators in symmetric spaces, Mathematische Nachrichten 298,7 (2025), 2309-2326
- Grzegorz Lewicki, Michael Prophet, Minimal polynomial extensions and projections onto the lines in Lp[−1,1], vol. 10,3 (2025), 565-582, Pure and Applied Functional Analysis
Interests
Functional Analysis
Approximation Theory
Minimal Projections
Tennis
Chess
Major awards and honours
- Krzyż Kawalerski Orderu Odrodzenia Polski, 2017, Prezydent Rzeczypospolitej Polskiej
Grzegorz Lewicki
academic degree/title Professor positionresearch and faculty staff member group, professor
unit
- Department of Approximation Theory
- Institute of Mathematics
grzegorz.lewicki@uj.edu.pl